[Bridge] how to get a list of ip adresses

Sebastian Gottschall (DD-WRT) s.gottschall at dd-wrt.com
Mon Jan 19 20:51:06 PST 2009


richardvoigt at gmail.com schrieb:
> On Tue, Jan 20, 2009 at 1:06 AM, Sebastian Gottschall (DD-WRT)
> <s.gottschall at dd-wrt.com> wrote:
>   
>> ?ukasz Mierzwa schrieb:
>>     
>>> Hi,
>>>
>>> I'm running kvm virtual machines with bridged networking with
>>> libvirtd, virtual guests are getting ip addresses from dhcp, listing
>>> interface information on kvm host gives me only bridge ip, there is no
>>> information about guests ip assigned by dhcpd to tap interfaces that
>>> are added to the bridge, is there any way to get this information from
>>> kvm host system where the bridge is created? I couldn't find any
>>> usable information on this subject, right now I need to check dhcp
>>> leases or login over vnc. Thanks for any help.
>>>       
>> the bridging code is not responsible for tracking ip informations. you
>> really have to check your dhcp leases which is the clean way.
>> another trick is sending a broadcast ping to your client network and
>> looking at the arp table. but this is just a dirty way
>>     
>
> Sounds like a good place to use dynamic DNS.  This can be
> dhcp-integrated (dnsmasq does this well, Windows server dns daemon
> does it as well) or using a client inside the virtual machine to
> register its name with a web service (no-ip.com, dyndns.org, etc.)
>   
or chillispot / nocatauth /wifidog  etc. hotspot redirection services. 
that might work too, if the authentication page is designed in that way
>   
>> Sebastian
>>     
>>> Lucas
>>> ------------------------------------------------------------------------
>>>
>>> _______________________________________________
>>> Bridge mailing list
>>> Bridge at lists.linux-foundation.org
>>> https://lists.linux-foundation.org/mailman/listinfo/bridge
>>>       
>> --
>> Mit freundlichen Grüssen / Regards
>>
>> Sebastian Gottschall / CTO
>>
>> NewMedia-NET GmbH - DD-WRT
>> Firmensitz:  Wormser Straße 5 - 7, 64625 Bensheim
>> Registergericht: Amtsgericht Darmstadt, HRB 25473
>> Geschäftsführer: Peter Steinhäuser, Christian Scheele
>> http://www.dd-wrt.com
>> email: s.gottschall at dd-wrt.com
>> Tel.: +496251-582650 / Fax: +496251-5826565
>>
>>
>> _______________________________________________
>> Bridge mailing list
>> Bridge at lists.linux-foundation.org
>> https://lists.linux-foundation.org/mailman/listinfo/bridge
>>
>>     
>
>   


-- 
Mit freundlichen Grüssen / Regards

Sebastian Gottschall / CTO 

NewMedia-NET GmbH - DD-WRT 
Firmensitz:  Wormser Straße 5 - 7, 64625 Bensheim
Registergericht: Amtsgericht Darmstadt, HRB 25473
Geschäftsführer: Peter Steinhäuser, Christian Scheele
http://www.dd-wrt.com
email: s.gottschall at dd-wrt.com
Tel.: +496251-582650 / Fax: +496251-5826565 




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